NEW YORK ( Trefis) -- Oil major BP ( BP) may face a federal investigation on whether company officials deliberately lied to the government about estimates relating to the size of the Gulf of Mexico spill.
The FTSE 100 gains more than 1% as oil shares rise.
Leading European oil groups gained more than 5% on Thursday after OPEC's surprise output cut plan. But analysts are unsure the agreement amounts to much.
Energy stocks rise even as oil prices give up initial gains.
The oil cartel will reduce energy output at its next meeting in November, according to reports.